Paper bag



March 27, 1934. a. w. FOPPE PAPER BAG Filed May 16. 1931 INVENTOR G0RE l l/ POP/ E 9% AFTORNEY Patented Mar. 27,

PAPER BAG George W. Poppe, Brooklyn,

N. Y., assignor to Equitable Paper Bag Co. Inc., Brooklyn, N. Y., a corporation of New York Application May 16, 1931, Serial No. 537,844 1 Claim. (Cl. 229-57) This invention relates to paper receptacles such as paper bags and the like and one of its objects is to produce an article of this type requiring less paper for the same length of receptacle 5 than heretofore.

Anotherobject is the production of a bag or bag-envelope in which the bottom fold is shorter than in bags of the ordinary type.

The invention will be better understood from the following description taken in connection 'with the accompanying drawing in which Figure 1 is a view showing the bottom portion of the bag of my present invention before the bottom is closed and Figure 2 is a similar view but with the bottom folded and pasted. In the commercial production of my improved bag I first form a bag tube and separate bags are cut therefrom in the manner described in my Patent 1,798,168, granted March 31, 1931. As shown in said patent the web of paper from which the. bags are to be made is preliminarily slit or cut at intervals as shown in Figure 11 of said patent and knife edges 36 and 92, Figure .1, are spaced at such a distance apart that transverse cuts made by said knives meet .the ends of the slits. The resulting bag is shown in Figure 13 having a long closing flap having a straight upper serrated edge and slanting side edges. The part to be folded over to form the bottom has ben cut out from the tube and forms a trapezoid.

There is also formed gussets indicated at 136 in Figure 13 of said patent and indicated at 45 in Figures 1 and 2 of the present application. r

After the 'bag has been formed as described in said patent it is fed to folding mechanism which folds the bag bottom.

Just before the end of the bag enters the usual clamping mechanism a line of paste 53 is applied across the upper bag wall.

Heretofore it has been necessary to fold the bag in such a way that both the upper and lower walls are held by the clamp.

In my application Serial No. 617,544 filed June 16, 1932 which is a division of the present application, I have shown a mechanism whereby a successful bottom fold may be made by folding along the dot-and-dash line bb, Figure 1, thereby including only the lower bag wall within the clamp, all of said mechanism being fully described in said divisional application 617 ,544.

The final result is a bag which may be made longer than a bag made in the ordinary way, or conversely,' a bag of a given length will require less paper than a bag of the ordinary type.

What I claim is:

A bag formed from a fiat tube and having upper and lower walls, the upper wall being cut out at the bottom in the form of a trapezoid whose lower side is longer than the upper side, a narrow straight line of paste extending across the upper wall immediately adjacent the lower edge thereof, the lower wall being folded over on to the upper wall to completely close the bag bottom and so that the lower straight edge of the lower wall ,will just cover the paste line.

GEORGE W. POPPE. 

